<#--copyright标签宏-->
<#macro copyright date company >
    Copyright ${date} ${company} <br>
    All rights reserved.
</#macro>

<#--img标签宏-->
<#macro img src ext... >
    <img src="${src?html}" <#list ext?keys as key >${key} = "${ext[key]}" </#list> />
</#macro>
